flex 超牛的验证码

ValidatorMain.mxml  
  <?xml version="1.0" encoding="utf-8" ?> 
- <mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="100" height="100">
  <mx:Metadata>[Event(name="btn1_click")] [Event(name="btn2_click")] [Event(name="btn3_click")] [Event(name="btn4_click")] [Event(name="btn5_click")] [Event(name="btn6_click")] [Event(name="btn7_click")] [Event(name="btn8_click")]</mx:Metadata> 
  <mx:Button id="btn1" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn1_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#D9D9D9, #FFFFFF]" themeColor="#D9D9D9" verticalCenter="0" left="5" /> 
  <mx:Button id="btn2" x="65" y="15" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn2_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#D22023, #FFA781]" themeColor="#D22023" /> 
  <mx:Button id="btn3" x="15" y="65" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn3_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#00339F, #A4D4FD]" themeColor="#00339F" /> 
  <mx:Button id="btn4" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn4_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#DC25F2, #FF63A9]" themeColor="#B60E44" horizontalCenter="0" bottom="5" /> 
  <mx:Button id="btn5" x="65" y="65" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn5_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#10A804, #BCFDA8]" themeColor="#10A804" /> 
  <mx:Button id="btn6" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn6_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#FF8D00, #FFDBAA]" themeColor="#FF8D00" verticalCenter="0" right="5" /> 
  <mx:Button id="btn7" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn7_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#191919, #AAAAAA]" themeColor="#191919" horizontalCenter="0" top="5" /> 
  <mx:Button id="btn8" x="15" y="15" width="20" height="20" cornerRadius="99" click="dispatchEvent(new Event('btn8_click'));" fillAlphas="[1.0, 1.0]" fillColors="[#BCA200, #FFFF4B]" themeColor="#BCA200" /> 
  </mx:Canvas>

 

 

ValidatorExample.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:ns1="*">

 <mx:Script>
  <![CDATA[
   import mx.controls.Alert;
   
   private function randRange(min:Number, max:Number):Number
   {
       var randomNum:Number = Math.floor(Math.random() * (max - min + 1)) + min;